Products

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Our JKR-Certified Asphalt Production Facility

Top Base Structure Sdn. Bhd. has a JKR recognized drum mix asphalt plant which is located approximately 2km from the Kubang Semang toll gate of the Butterworth – Kulim Expressway (BKE). The plant produces bituminous macadam as well as asphaltic concrete of wearing and binder course to the requirement of customers. We use bitumen grade 60/70 for the production of both asphalt products.

OUR PRODUCTS

Asphalt Concrete (AC)– Wearing & Structural Layers

Our Asphalt Concrete (AC) mixes are designed to meet different traffic loads, surface requirements, and structural applications.

Asphalt Concrete (AC)
AC10 (JKR/SPJ/2008-S4)
  • Suitable for light traffic roads and surface finishing layers
  • Provides a smooth riding surface with cost-efficient application
  • Commonly used for residential areas, internal roads, and low-volume access roads
  • Ideal where economy and surface comfort are key considerations
  • Widely used wearing course for highways, urban roads, and municipal infrastructure
  • Offers a balanced performance of durability, flexibility, and skid resistance
  • Suitable for medium to heavy traffic conditions
  • Preferred choice for long-term pavement performance and stability
  • Designed for base and binder course layers in heavy-duty pavement structures
  • Provides high load-bearing capacity and structural strength
  • Ideal for industrial roads, logistics routes, and high-traffic highways
  • Ensures long-term pavement stability under heavy axle loads
  • Engineered for wearing course applications with enhanced surface durability
  • Improves skid resistance and ride quality under continuous traffic flow
  • Suitable for high-performance road surfaces requiring extended lifespan
  • Helps reduce maintenance frequency and lifecycle cost
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Bituminous Macadam (BM) – Structural Base Layers

Our Bituminous Macadam range supports foundation strength and load distribution for road structures.

Bituminous Macadam (BM)
BML 10 (JKR/SPJ/1988)
  • Used for light-duty base layer applications
  • Supports surface pavement layers in low traffic conditions
  • Provides initial structural support and stability
  • Suitable for temporary or minor road construction works
  • Designed for medium-duty base course applications
  • Enhances load distribution and pavement strength
  • Commonly used in secondary roads and industrial access routes
  • Improves structural performance under moderate traffic loading
  • Heavy-duty base materials for high-traffic road structures
  • Deliver superior structural integrity and load resistance
  • Suitable for highways, industrial corridors, and major infrastructure projects
  • Ensures long-term durability under continuous heavy usage
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Bituminous Coating Materials– Layer Bonding System

These materials ensure strong bonding between pavement layers, which is critical for preventing structural failure.

Please assist with the top-up product specification for this part.
Bituminous Tack Coat (RS-1K)
  • Applied between asphalt layers to ensure strong interlayer bonding
  • Prevents slippage, delamination, and early pavement failure
  • Enhances overall pavement structural integrity
  • Essential for multi-layer asphalt construction systems
  • Applied on granular base before asphalt laying
  • Improves adhesion between base layer and asphalt layer
  • Seals surface and reduces dust penetration and moisture impact
  • Strengthens long-term pavement bonding performance
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Asphalt Concrete

  • AC 10 (JKR/SPJ/2008-S4)
  • AC 14 (JKR/SPJ/2008-S4)
  • AC 28 (JKR/SPJ/2008-S4)
  • ACW 20 (JKR 20401-0029-97)

Bituminous Tack Coat, RS-1K

Bituminous Macadam

  • BML 10 (JKR/SPJ/1988)
  • BMW 14 (JKR/SPJ/1988)
  • BMW 20 (JKR/SPJ/1988)
  • BMB 20 (JKR/SPJ/1988)
  • BMB 28 (JKR/SPJ/1988)

Bituminous Prime Coat, SS-1K